================================================================== BUG: KASAN: stack-out-of-bounds in handle_pte_fault mm/memory.c:3951 [inline] BUG: KASAN: stack-out-of-bounds in __handle_mm_fault+0x3e73/0x4460 mm/memory.c:4096 Read of size 8 at addr ffff88019dee7958 by task syz-executor7/20066 PANIC: double fault, error_code: 0x0 CPU: 0 PID: 20090 Comm: syz-executor0 Not tainted 4.18.0-rc3+ #48 CPU: 1 PID: 20066 Comm: syz-executor7 Not tainted 4.18.0-rc3+ #48 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x2e/0x5020 kernel/locking/lockdep.c:3294 Call Trace: Code: 41 57 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 41 89 cf 41 56 print_address_description+0x6c/0x20b mm/kasan/report.c:256 41 55 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 49 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 89 handle_pte_fault mm/memory.c:3951 [inline] __handle_mm_fault+0x3e73/0x4460 mm/memory.c:4096 fd 41 54 45 89 cc 53 65 4c 8b 34 25 40 ee 01 00 48 handle_mm_fault+0x53e/0xc80 mm/memory.c:4133 83 e4 f0 48 __do_page_fault+0x620/0xe50 arch/x86/mm/fault.c:1396 81 ec 60 03 00 00 do_page_fault+0xf6/0x8c0 arch/x86/mm/fault.c:1471 48 8b 45 10 <89> 94 24 80 00 00 00 48 ba page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1160 00 RIP: 0033:0x409180 00 00 Code: 00 03 00 00 fc 00 ff 48 df 48 89 89 84 54 24 24 98 30 RSP: 0018:ffff88019c042e90 EFLAGS: 00010086 41 be RAX: 0000000000000000 RBX: 1ffff1003380864e RCX: 0000000000000002 a0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92620 be RBP: ffff88019c043218 R08: 0000000000000000 R09: 0000000000000000 R10: ffff88019e3c71b8 R11: ffff8801dae236b3 R12: 0000000000000000 72 R13: ffffffff88f92620 R14: ffff8801c0180700 R15: 0000000000000002 00 FS: 00007f450f795700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 e8 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 c7 CR2: ffff88019c042e88 CR3: 00000001a3e74000 CR4: 00000000001406f0 DR0: 00000000200001c0 DR1: 00000000200001c0 DR2: 0000000000000000 c9 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 04 Call Trace: 00